Car-brake



. Witnqsseb:

D. R. DWYER. Oar Brake.

Patented July 20,1880;

rL-FETEHS, FHOTO-LITHOGRAPHER. WASHlNGTON D C UNITED STATES DENIS R.DWYER, 0

CAR-

SPECIFICATION forming part of Letters Application filed To all whom itmay concern:

Be it known that I, DENIS R. DWYER, a citizen of the United States,residing at Marshall, in the county of Harrison and State of Texas, haveinvented certain new and useful Improvements in Brakes for Caboose-Oars;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawing, and to letters or figures of referencemarked thereon, which form a part of this specification.

This invention relates to certain improvements in brakes for cars; andit has for its object to provide a system of brakes fora caboosecar bymeans of which the car frame or body itself will be relieved of allstrain in applying the brakes, and by means of which the brakes may beapplied from within the car. I attain these objects by the mechanismillustrated in the accompanying drawing, in which is represent-ed alongitudinal vertical sectionot' my improvement.

The letter A indicates the body or frame of the car; B, the trucks,carrying the wheels 0, which may be constructed in the ordinary or anyapproved manner.

The letters D E indicate two transverse brake-beams extending under thecar at the outside of each set of wheels. The beam D has connected toit, by means of a connection, F, a lever, G, which is connected at itslower end or short arm, by means of a connectingrod, H, with thebrake-beam E, the upper end of said lever being connected, by means of alongitudinal connecting-rod, I, and chain K,

' to the brake-shaft L, which is journaled at the center of the car andprojects through the floor of the same.

The brake-beams are loosely connected at each end to the body of the carby means of RSHALL, TEXAS.

BRAKE.

Patent No. 230,181, dated July 20, 1880.

February 12, 1880.

hangers M, and are provided with brake-shoes N, adapted to bear againstthe respective wheels.

The operation of my invention is as follows: Upon turning thebrake-shaft L the chains K will be taken up on the same in oppositedirections, creating a dratt on the rods I. By said rods the levers Gwill be operated to draw the brake-beams of each respective set ofwheels together, causing the shoes to bear against said wheels andexerting the whole effective force upon the brakes without losing any ofthe same upon the body of the car, thus relieving the car of allinjurious strain and rendering the brakes more elfective.

I am aware that operating brakes upon the trucks at both ends of a carsimultaneously by means ofa system ofconnecting-rods and levers, asshown by the patents of Thompson and Bachelder, July 6, 1852, is old,and I do not therefore claim such an arrangement of devices for applyingbrakes.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

The combination, in a caboose-car, of the trucks B at each end, thewheels 0, the brakebeams D E, secured by looselyconnected hangers M toopposite ends of. the respective trucks, the operating-levers Gr,connectingbars H, and the connecting-bars I, secured to the levers G atone end and to the vertical brake-shaft L at their other ends, the saidbrake-shaft being located between the two trucks, whereby the body ofthe car is relieved of the usual strain in applying the brakes,substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

DENIS R. DWYER.

\Nitnesses:

F. P. YOUNG,

O. H. MOGLLL.

